• RT/X Frequency: 10.6 MHz Built in Adder• SSB Frequency: Auto Conencting and load 1 KHz Tone to Mic.Power Supply Notes:• There was noise in the receiver of the transceiver when using a switchting power supply during testing.Not sure or the use of SPS will always result in noise in te receiver. Maye this was a 'one type event'.• Using an anlogue KIM KE600 universal adapter did not result in noise in the receiver.